摘要
通过循环伏安法研究了以Ｔ＿ｓＯＨ（对甲苯磺酸），ＨＣｌ＿４，Ｈ＿２ＳＯ＿４，ＮａＣｌＯ＿４和Ｎａ＿２ＳＯ＿４为支持电解质，Ｔｉｒｏｎ为催化剂，在不同电位范围催化电合成聚吡咯（ＰＰＥ／Ｐｔ）和该膜电极在相应支持电解质水溶液中的电化学行为．发现ＰＰＥ／Ｐｔ的ＣＶ图、稳定性和电活性随聚合电位及阴离子种类的变化明显不同于非催化电合成聚吡咯．在０～０．８Ｖ电位范围制得的ＰＰＥ／Ｐｔ的稳定性最好，并随支持电解质的变化按Ｔ＿ｓＯＨ，ＨＣｌＯ＿４，Ｈ＿２ＳＯ＿４，ＮａＣｌＯ＿４和Ｎａ＿２ＳＯ＿４的顺序减小．同时讨论了产生变化的原因．
Electrochemical behavior of the Dolypyrrole film(PPE/pt),Which is abtained by catalytic elec-trochemical synthesis with Tiron as a catalyst,has been investigated by cyclic voltammetry at different potential range with T_sOH (toluene solphonic acid),HClO_4,H_2SO_4 ,NaClO_4 and Na_2SO_4 as supporting electrolytes. It was found that the voltammogram, oxidative stability and electrochemical activity of PPE/Pt varied with the counter ion used in generation and potential obviously different from polypyr-role film of noncatalytic electrosynthesis. The oxidative stability of PPE/Pt was quite well at 0～0.8 V potential range and decreased in following order:T_sOH, HClO_ 4, H_2SO_4 ,NaCLO_4 and Na_2SO_4,mean-while the changed reason were discussed.
出处
《西南师范大学学报（自然科学版）》
CAS
CSCD
1995年第6期653-657,共5页
Journal of Southwest China Normal University(Natural Science Edition)
关键词
电位
聚吡咯
催化电合成
电化学
伏安法
electric polential
polypyrrole
catalytic electrosynthesis
electrochemical behavior
voltammetry
